.navigationDestination(for: Element.self) { element in
                        if let urlString = element.link?.externalUrlString, let url = URL(string: urlString) {
                              openURL(url)
    }
}

I get below error: 'buildExpression' is unavailable: this expression does not conform to 'View'

        .navigationDestination(for: Element.self) { element in
                        if let urlString = element.link?.externalUrlString, let url = URL(string: urlString) {
                              openURL(url)
    }
}

I get below error: 'buildExpression' is unavailable: this expression does not conform to 'View'

• ios
• swiftui

Share Improve this question Follow asked Mar 20 at 15:08 AppleDeveloperAppleDeveloper 1,45933 gold badges2121 silver badges5252 bronze badges 2

• 1 An external URL is not a "navigation destination". Do you want to push a SFSafariViewController or something? Otherwise, just use a button and call openURL in its action. – Sweeper Commented Mar 20 at 15:10
• Please post this an an answer. – AppleDeveloper Commented Mar 20 at 15:58

Add a comment  | 

1 Answer 1

Sorted by: Reset to default 1

An external URL is not a "navigation destination". You should replace the NavigationLink

NavigationLink("Some Title", value: someElement)

with a Button:

Button("Some Title") {
    if let urlString = element.link?.externalUrlString, let url = URL(string: urlString) {
        openURL(url)
    }
}

If the NavigationLink was originally in a List, and you want to keep the trailing chevron, see SwiftUI List disclosure indicator without NavigationLink.

---

If you want to navigate to a SFSafariViewController that shows that URL, see How do I use SFSafariViewController with SwiftUI?.